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Northwest Africa 13510 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13510 This is an OFFICIAL meteorite name. Abbreviation: NWA 13510 Observed fall: No Year found: 2020 Country: (Northwest Africa) Mass: 1198 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 451 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||||||||||||||||||||
Comments: | Approved 23 Jan 2021 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Northwest Africa 13510 (NWA 13510) (Northwest Africa) Purchased: 2020 Aug Classification: HED achondrite (Howardite) History: Purchased by Bob Falls in August 2020 from a dealer in Zagora, Morocco. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Complex polymict breccia composed predominantly of angular grains of disaggregated eucritic crystalline debris plus angular grains of zoned diogenitic orthopyroxene (with more ferroan rims) and sparse lithic clasts in a finer grained matrix. Lithic clasts include eucrites (with intergranular to subophitic textures), sparse eucritic breccia, and sparse polygranular diogenite (composed of orthopyroxene exhibiting undulose extinction). The overall proportion of diogenitic material is estimated from optical microscopy and back-scattered images to be ~15 vol.%. Other minerals include pigeonite, augite, calcic plagioclase, olivine, silica polymorph, hedenbergite, ilmenite, Ti-free chromite and altered troilite. Geochemistry: Diogenitic orthopyroxene (cores Fs25.1-30.1Wo1.0-3.4, FeO/MnO = 29-36, N = 3; rims Fs53.2-53.4Wo2.4-2.7, FeO/MnO = 28, N = 2), pigeonite (Fs39.1-59.2Wo7.8-14.6, FeO/MnO = 30-33, N = 3), augite (Fs21.9-30.6Wo43.9-40.8, FeO/MnO = 26-30, N = 2), hedenbergite (Fs59.8Wo35.3, FeO/MnO = 43), olivine (Fa51.3-59.2, FeO/MnO = 43-48, N = 2), plagioclase (An82.1-92.3Or0.8-0.2, N = 4). Classification: Howardite. Specimens: 26.6 g plus one polished thin section at UWB; remainder with Mr. R. Falls. | ||||||||||||||||||||||||||||||
Data from: MB110 Table 0 Line 0: |
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Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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